query_question: Water flows upward in a pipe slanted at 30°, as in Fig. P2.35. The mercury manometer reads h = 12 cm. What is the pressure difference between points (1) and (2) in the pipe? <image 1>
options: ['12400 Pa', '36000 Pa', '26100 Pa']
demo_question_list: The tank of liquid in the figure P2.139 accelerates to the right with the fluid in rigid-body motion. Compute a_x in m/s^2. <image 1>
  A. 1.00 m/s2
  B. 1.50 m/s2
  C. 1.28 m/s^2
  
  Answer with the option's letter from the given choices directly. An ideal gas taken round the cycle ABCA as shown in PV diagram<image 1>.The work done during the cycle
  A. PV
  B. PV/2
  C. 2PV
  D. PV/3
  
  Answer with the option's letter from the given choices directly. The long pipe in Fig. 3.133 is filled with water at 20°C. When valve A is closed, p1 - p2 = 75 kPa. When the valve is open and water flows at 500 m^3/h, p_1 - p_2=160 kPa. What is the friction head loss between 1 and 2, in m, for the flowing condition? <image 1>
  A. 7.6 m
  B. 9.2 m
  C. 8.7 m
  
  Answer with the option's letter from the given choices directly. The 3-arm lawn sprinkler of Fig. P3.114 receives 20°C water through the center at 2.7 m^3/hr. If collar friction is neglected, what is the steady rotation rate in rev/min for $\theta $ = 40°? <image 1>
  A. 317 rev/min
  B. 414 rev/min
  C. 400 rev/min
  
  Answer with the option's letter from the given choices directly.